Answer / arvind kumar

Grid failure occurs due to grid disturbance. The grid
disturbance means tripping of one or more grid element like
transmission line, transformer, static var compensator etc
resulting in total failure of power supply at the substation
or loss of integrity of the grid at the transmission level
of 220kv and above.

How to calculate the cross section area for a 350 m cable, motor power is 26 kw???

1 Answers   Orient,

---

what is mean by flux

2 Answers  

---

whether a separate starter is used for a motor while it is connected to a vvvf panel?

2 Answers  

---

briefly explain principle of resistance welding

0 Answers  

---

what is the meaning of Air condition "TON"

3 Answers  

---

What is Generator Protection & Transformer Protection?

3 Answers   Areva,

---

Can 4pole (3 phase+neautral )RCCB proper functioning in only 3 phase load (no neautral, no Earth) ?

0 Answers   HCL, Reliance,

---

sir i applied for hpcl(electrical).i want to know from which subjects most of the technical que will b asked.and pattern of the written test.pls help me

0 Answers   HPCL,

---

What mean power grid fail. why power grid fail.

1 Answers   Intas, Tech Mahindra,

---

what mean by analog ,digital,numerical meters and relays? say the example?

0 Answers   ABB,

---

what is the resistence of human body?

3 Answers   BBC, NTPC,

---

what is two wattmeter test

2 Answers   Jindal,

---